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Title: Two-photon polymerization of cylinder microstructures by femtosecond Bessel beams

In this work, we present an approach to modulate femtosecond laser beams into Bessel beams with a spatial light modulator (SLM) for two-photon polymerization applications. Bessel beams with different parameters are generated and annular optical fields are produced at the focal plane of the objective. Uniform cylinder microstructures are fabricated by a single illumination during a few seconds without stage translation. By modulating the holograms encoded on the SLM, the diameters of the fabricated annular structures can be flexibly controlled in a wide range with no need of changing the optical elements and realignment of the optical path.
Authors:
 [1] ;  [2] ; ; ;  [3] ; ; ; ;  [1]
  1. Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026 (China)
  2. (Germany)
  3. Laser Zentrum Hannover e.V., 30419 Hannover (Germany)
Publication Date:
OSTI Identifier:
22311182
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BEAMS; HOLOGRAPHY; ILLUMINANCE; LASER RADIATION; MICROSTRUCTURE; PHOTONS; POLYMERIZATION; SCANNING LIGHT MICROSCOPY; VISIBLE RADIATION